stealc | 3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d

General

Target

3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe
Size

4.9MB
MD5

6c7f602306d9b4d0e2d6ca0a735480b5
SHA1

ca8b6a60325a4e16e9c4f77fc626b33f6776301a
SHA256

3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d
SHA512

80fd1c7bc0b51a03aa985063b04d781eb052dfa3eebc00ae70c82dece07ddc7f69d2f401e6d8e501134ebb4dcefacaf90f98dba5432c7b9c3f511bcd029e4ff5
SSDEEP

24576:ybQgkgnKCIrqw7D8RsFVXdbrMtdB1hhSiQTL5urVx+huPTJ4PhCYqsyRzbN/t0sz:ybQg5nMtUsF3KdUUdshOPJ12QJ9G

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2412	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2540	2412	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2412	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe
2412	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2540	2412	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe	32
PID 2412 wrote to memory of 2540	2412	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe	32
PID 2412 wrote to memory of 2540	2412	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe	32
PID 2412 wrote to memory of 2540	2412	3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe	32

C:\Users\Admin\AppData\Local\Temp\3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe
"C:\Users\Admin\AppData\Local\Temp\3d3e70c002477b1c5328d4297ff5a8db0981163e3c093b850908d271d1c7636d.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2412 -s 928
  2⤵
  - Program crash
  PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2412-0-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-1-0x00000000774E0000-0x00000000774E2000-memory.dmp

Filesize
8KB

Download
memory/2412-2-0x0000000000F91000-0x00000000011DA000-memory.dmp

Filesize
2.3MB

Download
memory/2412-3-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-4-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-5-0x0000000000F91000-0x00000000011DA000-memory.dmp

Filesize
2.3MB

Download
memory/2412-6-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-7-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-8-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-9-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-10-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-11-0x0000000000F90000-0x000000000147F000-memory.dmp

Filesize
4.9MB

Download
memory/2412-12-0x0000000000F91000-0x00000000011DA000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads